Related Experiment Video
Updated: Jun 18, 2026

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)
Published on: February 9, 2011
Community-associated methicillin-resistant Staphylococcus aureus in acute musculoskeletal infection in children: a
Kelly L Vander Have1, Boaz Karmazyn, Maneesh Verma
1Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI 48109, USA. klvander@med.umich.edu
Background:
Community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) is a virulent pathogen responsible for an increasing number of invasive musculoskeletal infections in healthy children. The purpose of this study is to characterize the presentation, clinical course, treatment, complications, and long-term morbidity of CA-MRSA musculoskeletal infection in children.
Methods:
A retrospective study of children with CA-MRSA musculoskeletal infections from 2 institutions was conducted.
Results:
The study group included 27 patients. Clinical presentation involved an extremity in 23 of 27 patients. Twelve patients required admission to the intensive care unit. Four of these patients developed acute multisystem failure. Magnetic resonance imaging was obtained in 21 patients and was diagnostic in all. Seven patients developed deep venous thrombosis and septic pulmonary emboli. All patients required surgical intervention, and 16 of 27 required multiple debridements.
Conclusions:
CA-MRSA is limb and life threatening. Prompt recognition and treatment are critical. Aggressive surgical drainage/debridement in addition to long-term antibiotics is required. There is significant potential for long-term morbidity despite aggressive management.
Level Of Evidence:
Level IV, retrospective case series.
Insights
Community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) causes severe pediatric musculoskeletal infections. Aggressive surgical treatment and antibiotics are crucial but long-term complications remain a concern.
Area of Science:
- Pediatric Infectious Diseases
- Musculoskeletal Infections
- Bacterial Pathogenesis
Background:
- Community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) is a growing threat in pediatric musculoskeletal infections.
- This pathogen causes invasive infections in previously healthy children.
Purpose of the Study:
- To characterize the clinical presentation, course, treatment, and outcomes of CA-MRSA musculoskeletal infections in children.
- To identify potential complications and long-term morbidity associated with these infections.
Main Methods:
- Retrospective case series involving 27 pediatric patients from two institutions.
- Data collected included clinical presentation, treatment interventions, and patient outcomes.
- Magnetic resonance imaging (MRI) was utilized for diagnosis.
Main Results:
- The majority of infections involved the extremities.
- 12 patients required intensive care unit admission, with 4 experiencing acute multisystem failure.
- Seven patients developed deep venous thrombosis and septic pulmonary emboli.
- All patients underwent surgical intervention, with 16 requiring multiple debridements.
Conclusions:
- CA-MRSA musculoskeletal infections pose a significant limb- and life-threatening risk to children.
- Prompt recognition, aggressive surgical drainage/debridement, and prolonged antibiotic therapy are essential.
- Despite aggressive management, substantial long-term morbidity is possible.
Related Concept Videos
Clinical Significance of Antibiotic Resistance
Staphylococcal Skin Infections
Mechanism of Antibiotic Resistance in MRSA
Bacterial Meningitis
Bacterial Meningitis I: Introduction
Streptococcal Pharyngitis